Turntable for railway-guns



F. FINCKH.

TURNTABLE FOR RAILWAY GUNS.

APPLICATION FILED SEPTA. 1920.

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specication or Lettersratent, Patented Nov. 23, 1920.

'Application vfiled September 4, 1920." Serial No. 408,379.

To all 'w hom t may concern Be it lrnown that I, FRITZ F INoxH, residing at Essen, Germany, 'a citizen of the German Republic, have invented a certain new andusetul Improvement in Turntables for Railway-Guns, of which the following is a specification.

'l his invention relates to that type of turntable for railway guns, the bridge of which has an opening for the gun barrel, when the gun is fired at an elevation and consists in the arrangement of a set of railsby means of which the opening in the bridge'oi the turntable can be bridged over and which rails can be thrown out of action at will.

The invention will be described with reference to the accompanying drawings in which- Y Figure l is a side elevation of one constructional form of the turntable together with a gun in the ring position and Fig. 2 is a section on the line 2 2 of Fig. l looking from the left.

Figs. 3 to 5 show views corresponding to Fig. 2 ot modified constructions of the turntable.

The arrangement shown in Figs. l and 2 will be described irst.

The bridge N of the turntable is supported at its center by a ring of balls nl on an underframe P. In this part of the bridge of the turntable is provided a rectangular opening n2 (see Fig. 2), up to which rails Q. (see Fig. l) laid on the turntable, reach. When the gun is run onto the turntable, rails R extend across the opening n2. The rails R are carried by a sleeper grid R1` which is pivotally attached to the bridge of the turntable, the axes, about which the grids R1 are swung, lying parallel with the longitudinal directionV of the rails R. Struts r2 (see Fig. 2) pivotally carried by the bridge I of the turntable and which can be connected Vbeen disconnected from the grids R1, the

struts r2 and the vgrids R1 are turned down into the position shown in full lines in Fig. 2. By this means the opening n2 is laid open and so aHords room for the breech 3 ci' the gun barrel J, which recoils, when the gun is fired, (see the positioniof the breech end "of the gun barrel 3 shown in dotted.

lines.) A tedious dismantling of the line of rails is thus avoided and at the same time the gun can be made ready for firing very quickly.

The construction shown in Fig. 3 and the 'one just described differ only in that the grids R1 for laying 'open the opening 'n2 are not swung downward out of the horizontal position in which they are held by the struts r2, but are swung upward. The width of the grids R1 is so formed in this case that they support the frame H of the carriage of the gun, which bends when the gun is fired, when they are in the position shown by full lines in Fig. 3. In this position the grids are secured by struts (not shown in the drawing).

In the construction shown in Fig. 4 the grids R2, which carry the rails R, are movable longitudinally in horizontal guides n3 on lthe bridge N of the turntable and are pushed, (calculated from the center of the line of rails), transversely to the longitudinal direction of the rails R inward to close the gun barrel 3 by lowering it. When in 9 the position, which it occupies, when the gun is run onto the turntable, the grid R3 can be supported by screw gears, for example, which serve at the same time for the raising and lowering of the grid.

Claims.

l. A turntable for railway guns which comprises a bridge, said bridge being provided with an opening for the gun barrel when thegun is fired at an elevation, a line of rails and means for bringing said line ot rails into position to bridge the opening.

2. turntable for railway guns which comprises a bridge, said bridge being provided with an opening for the gun barrel vwhen the gun is fired at an elevation, grids,

a line of rails supported on said grids, the grids supporting the rails adapted to be moved relatively to the bridge so that the opening can be bridged over, as and for the purpose set forth.

3. A turntable for railway guns comprising a bridge, said bridge being provided with an opening for thegun barrel when the ofun is fired at an elevation, a pair of grids or` bridging said opening hingedly mounted to the Vturntable on horizontal axes7 rails supported by said grids, struts pivotally mounted on the grids, said grids adapted to be swung on their axes to brin the line of rails into position, said rails eing adapted tobe secured in said position by the struts, substantially as described.

4. A turntable of the class described, comprising a bridge, said bridge being pro-vided with an opening for the gun barrel When the gun is fired at an elevation, grids for bridging said opening and supporting a line of rails, said grids being so mounted on the bridge that they maybe caused to support the frame of a gun, substantially as described.

5. A turntable of the class described which comprises a bridge, said brid e provided With an opening, a pair of gri s supporting a line of rails, said grids being movable transversely to uncover said open- 1n g6. A' turntable of the. class described which comprises a bridge, said bridge bein provided with an opening for a gun barre when the gun is fired at an elevation, a grid for bridglng said opening and supporting a line of rails, said grid being movable ver tically, substantially as descrlbed.

The foregoin specification si ed at Essen, Germany, t is 18th da ofY Y ay, 1920.

. FR TZ FINCKH.

In presence of- HANS Go'x'rsMANN, JOSEF OLomrrz. 

